EngineeringElectrical EngineeringElectric MachinesFault InjectionGenerator OperationProtection SystemsEarth Fault ProtectionFault ProtectionFault Protection SystemsGenerator ProtectionGenerator Protection SystemsStator Winding Faults
Ground faults in generator stator and field/rotor circuits are serious events that can lead to damage, costly repair, extended outage and loss of revenue. This paper explores advances in field/rotor circuit ground fault and stator ground fault protection. These advanced protection strategies employ AC injection and other tactics to provide benefits in security, sensitivity and speed.